{"id":71,"date":"2017-10-17T20:38:24","date_gmt":"2017-10-17T18:38:24","guid":{"rendered":"http:\/\/127.0.0.1:9080\/wordpress\/?page_id=71"},"modified":"2025-11-03T12:51:59","modified_gmt":"2025-11-03T11:51:59","slug":"bestand-htwp-bosch","status":"publish","type":"page","link":"https:\/\/lowex-bestand.de\/index.php\/bestand-htwp-bosch\/","title":{"rendered":"HTWP \u2013 Bosch"},"content":{"rendered":"<p>[:de]<\/p>\n<h3><span style=\"color: #009682;\"><strong>Entwicklung von W\u00e4rmepumpenl\u00f6sungen f\u00fcr Mehrfamilienh\u00e4user<\/strong><\/span><\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1375 alignright\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de.png\" alt=\"\" width=\"200\" height=\"206\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de.png 1360w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-291x300.png 291w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-995x1024.png 995w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-768x791.png 768w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/h3>\n<p><strong>F\u00f6rderkennzeichen: <\/strong>03ET1377 A\/B\/C<\/p>\n<p><strong>Laufzeit<\/strong>: 01.01.2016 bis 31.12.2021<\/p>\n<p><strong>Projektpartner:<\/strong> Fraunhofer ISE, Bosch Thermotechnik, Robert Bosch GmbH<\/p>\n<p>&nbsp;<\/p>\n<h4><span style=\"color: #019682;\">Ziele<\/span><\/h4>\n<p>Entwicklung von zwei W\u00e4rmepumpenl\u00f6sungen f\u00fcr Mehrfamilienh\u00e4user:<\/p>\n<ul>\n<li>Ein bivalentes System, bestehend aus einer elektrischen W\u00e4rmepumpe und einem fossilen Generator, f\u00fcr Raumheizung und Warmwasserbereitung mit optimiertem Betrieb f\u00fcr unterschiedliche Optimierungsziele (Prim\u00e4renergie, CO2-Emissionen, Investitionskosten, &#8230;)<\/li>\n<li>Eine elektrische W\u00e4rmepumpe mit einem K\u00e4ltemittelkreislauf mit reduzierter F\u00fcllung auf Basis eines nat\u00fcrlichen K\u00e4ltemittels<\/li>\n<\/ul>\n<h4><span style=\"color: #019682;\">Technologie<\/span><\/h4>\n<p><strong>Bivalentes System<\/strong><\/p>\n<p>Die gr\u00f6\u00dften Herausforderungen bei der Installation von W\u00e4rmepumpen in bestehenden Mehrfamilienh\u00e4usern sind die geforderten hohen Vorlauftemperaturen &#8211; insbesondere zur Einhaltung der gesundheitlichen Vorschriften f\u00fcr die Warmwasserbereitung &#8211; und die begrenzte Verf\u00fcgbarkeit von geeigneten W\u00e4rmequellen in der Umgebung.<\/p>\n<p>Eine vielversprechende L\u00f6sung f\u00fcr die Sanierung besteht in der Installation so genannter bivalenter (hybrider) Systeme, bei denen eine elektrische W\u00e4rmepumpe und ein fossiler W\u00e4rmeerzeuger durch ein \u00fcbergeordnetes Regelungssystem parallel betrieben werden.<\/p>\n<p>Bei dieser L\u00f6sung muss die W\u00e4rmepumpe (inkl. Quelle) nicht auf maximale Leistung dimensioniert werden und die W\u00e4rmeerzeuger k\u00f6nnen effizienter betrieben werden (z.B. in Bezug auf die Betriebskosten oder den Prim\u00e4renergieverbrauch).<\/p>\n<figure id=\"attachment_516\" aria-describedby=\"caption-attachment-516\" style=\"width: 598px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-516\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-1024x703.png\" alt=\"\" width=\"598\" height=\"410\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-1024x703.png 1024w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-300x206.png 300w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-768x527.png 768w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><figcaption id=\"caption-attachment-516\" class=\"wp-caption-text\">Bivalente Temperaturen und Anteile der W\u00e4rmeerzeuger Gaskessel und W\u00e4rmepumpe an der Deckung der W\u00e4rmelast unter Variation der Nutzung (sanierter oder unsanierter Geb\u00e4udebestand) sowie der Optimierungsziele (Prim\u00e4renergieverbrauch, CO2-Emissionen und Verbrauchskosten); Ergebnisse von vereinfachten, statischen Berechnungen.<\/figcaption><\/figure>\n<p><strong>W\u00e4rmepumpe mit nat\u00fcrlichem K\u00e4ltemittel<\/strong><\/p>\n<p>Um die in der F-Gas-Verordnung (Verordnung (EU) Nr. 517\/2014) vorgesehene Reduktion der Emissionen von fluorierten Treibhausgasen (F-Gase) zu erf\u00fcllen, wird in einem zweiten Teil des Projekts parallel eine W\u00e4rmepumpe auf Basis nat\u00fcrlicher, brennbarer K\u00e4ltemittel entwickelt, die f\u00fcr bestehende MFH geeignet ist. Um das Gef\u00e4hrdungspotenzial zu minimieren, wird der K\u00e4ltekreislauf unter anderem mit neuen Verdampferkonzepten auf eine minimale F\u00fcllung ausgelegt. Ein entsprechendes Sicherheitskonzept wird ebenfalls entwickelt. Um den hohen Anforderungen an die Schallemissionen in dicht bebauten Stadtgebieten gerecht zu werden, flie\u00dfen aktuelle Entwicklungen der Psychoakustik in die gesamte Entwicklung ein.<\/p>\n<figure id=\"attachment_954\" aria-describedby=\"caption-attachment-954\" style=\"width: 840px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-954\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1024x683.jpg\" alt=\"\" width=\"840\" height=\"560\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1024x683.jpg 1024w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-300x200.jpg 300w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-768x512.jpg 768w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1536x1024.jpg 1536w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min.jpg 1731w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><figcaption id=\"caption-attachment-954\" class=\"wp-caption-text\">Pr\u00fcfstand zur Messung von K\u00e4ltemittel-W\u00e4rme\u00fcbertragern (Verdampfer und Verfl\u00fcssiger) am Fraunhofer ISE<\/figcaption><\/figure>\n<h4><span style=\"color: #019682;\"><b>Arbeitsplan<br \/>\n<\/b><\/span><\/h4>\n<p><strong>Bivalente (hybride) W\u00e4rmepumpen-Heizsysteme im Bereich der Renovierung von Mehrfamilienh\u00e4usern<\/strong><\/p>\n<ul>\n<li>Grundlagen und Stand der Technik<\/li>\n<li>Simulationsgest\u00fctzte Bewertung verschiedener Dimensionierungs- und Betriebsstrategien f\u00fcr unterschiedliche Anlagenkonzepte<\/li>\n<li>Reglerentwicklung und -implementierung<\/li>\n<li>Demonstrationsprojekte<\/li>\n<\/ul>\n<p><strong>W\u00e4rmepumpe mit nat\u00fcrlichem K\u00e4ltemittel f\u00fcr den Einsatz in Mehrfamilienh\u00e4usern<\/strong><\/p>\n<ul>\n<li>Entwicklung von k\u00e4ltemittelreduzierten Verdampfern und Optimierung der Gefrier- und Abtaustrategie<\/li>\n<li>Auslegung des K\u00fchlkreislaufs<\/li>\n<li>Technische Nachweise<\/li>\n<li>Simulationsbasierte Bewertung der Ger\u00e4teleistung im Anwendungskontext<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4><a href=\"https:\/\/lowex-bestand.de\/index.php\/ergebnisse\/?lang=de\"><b>Link zu Downloads<\/b><\/a><\/h4>\n<p>[:en]<\/p>\n<h3><span style=\"color: #009682;\"><strong>Development of heat pump solutions for multi-family houses<\/strong><\/span><\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-1375\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de.png\" alt=\"\" width=\"200\" height=\"206\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de.png 1360w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-291x300.png 291w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-995x1024.png 995w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2022\/02\/BMWK_Fz_2017_Office_Farbe_de-768x791.png 768w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/h3>\n<p><strong>Funding code: <\/strong>03ET1377 A\/B\/C<\/p>\n<p><strong>Funding period<\/strong>: 01.01.2016 until 31.12.2021<\/p>\n<p><strong>Project partner:<\/strong> Fraunhofer ISE, Bosch Thermotechnik, Robert Bosch GmbH<\/p>\n<p>&nbsp;<\/p>\n<h4><span style=\"color: #019682;\">Objectives<\/span><\/h4>\n<p>Development of two heat pump solutions for multi-family houses:<\/p>\n<ul>\n<li>A bivalent system, consisting of an electric heat pump and a fossil generator, for space heating and DHW heating with optimized operation for different optimization goals (primary energy, CO2 emissions, investment cost, \u2026)<\/li>\n<li>An electric heat pump with a refrigerant circuit with reduced charge based on a natural refrigerant<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4><span style=\"color: #019682;\">Technology<\/span><\/h4>\n<p><strong>Bivalent System<\/strong><\/p>\n<p>The main challenges posed by the installation of heat pumps in existing multi-family houses are the required high flow temperatures \u2013 specially to comply with health regulations with regard to domestic hot water &#8211;\u00a0 and the limited availability of adapted heat sources in the surroundings.<\/p>\n<p>A promising solution for the renovation consists in installing so-called bivalent (hybrid) systems in which an electric heat pump and a fossil power heat generator operate in parallel through a superior control system.<\/p>\n<p>With this solution the heat pump (incl. source) must not be dimensioned for maximum performance and the heat generators can run more efficiently (for example with regard to the operating costs or primary energy consumption).<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_516\" aria-describedby=\"caption-attachment-516\" style=\"width: 598px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-516\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-1024x703.png\" alt=\"\" width=\"598\" height=\"410\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-1024x703.png 1024w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-300x206.png 300w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2018\/04\/Bivalenztemperaturen-768x527.png 768w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><figcaption id=\"caption-attachment-516\" class=\"wp-caption-text\"><em>Bivalent temperatures and shares of the heat generators gas boiler and heat pump in covering the heat load under variation of use (renovated or non-renovated existing buildings) as well as the optimisation objectives (primary energy consumption, CO2 emissions and consumption costs); results of simplified, static calculations.<\/em><\/figcaption><\/figure>\n<p><strong>Heat pump with natural refrigerant<\/strong><\/p>\n<p>In order to meet the reduction in emissions of fluorinated greenhouse gases (F-gases) envisaged by the F-Gas Regulation (Regulation (EU) No. 517\/2014), a heat pump based on natural, flammable refrigerants that is suitable for existing MFHs is being developed in parallel in a second part of the project. To minimize its hazard potential, the refrigeration circuit is among other things designed for a minimal charge using new evaporator concepts. A corresponding security concept is also being developed. In order to meet the high requirements for sound emissions in densely built-up urban areas, current developments in psychoacoustics are incorporated into the entire development.<\/p>\n<figure id=\"attachment_954\" aria-describedby=\"caption-attachment-954\" style=\"width: 840px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-954\" src=\"http:\/\/www.lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1024x683.jpg\" alt=\"\" width=\"840\" height=\"560\" srcset=\"https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1024x683.jpg 1024w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-300x200.jpg 300w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-768x512.jpg 768w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min-1536x1024.jpg 1536w, https:\/\/lowex-bestand.de\/wp-content\/uploads\/2020\/03\/Teststand-min.jpg 1731w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><figcaption id=\"caption-attachment-954\" class=\"wp-caption-text\">Test stand for measuring refrigerant heat exchangers (evaporators and condensers) at Fraunhofer ISE<\/figcaption><\/figure>\n<h4><span style=\"color: #019682;\"><b>Work plan<br \/>\n<\/b><\/span><\/h4>\n<p><strong>Bivalent (hybrid) heat pump heating systems in the field of multi-family building renovation<\/strong><\/p>\n<ul>\n<li>Basics and state of the art<\/li>\n<li>Simulation-based evaluation of different dimensioning and operating strategies for different system concepts<\/li>\n<li>Controller development and implementation<\/li>\n<li>Demonstration projects<\/li>\n<\/ul>\n<p><strong>Heat pump with natural refrigerant for use in multi-family buildings<\/strong><\/p>\n<ul>\n<li>Development of refrigerant-reduced evaporators and optimization of the freezing and defrosting strategy<\/li>\n<li>Design of the refrigeration circuit<\/li>\n<li>Technical evidence<\/li>\n<li>Simulation-based assessment of device performance in the application context<\/li>\n<\/ul>\n<p>[:]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[:de] Entwicklung von W\u00e4rmepumpenl\u00f6sungen f\u00fcr Mehrfamilienh\u00e4user F\u00f6rderkennzeichen: 03ET1377 A\/B\/C Laufzeit: 01.01.2016 bis 31.12.2021 Projektpartner: Fraunhofer ISE, Bosch Thermotechnik, Robert Bosch GmbH &nbsp; Ziele Entwicklung von zwei W\u00e4rmepumpenl\u00f6sungen f\u00fcr Mehrfamilienh\u00e4user: Ein bivalentes System, bestehend aus einer<\/p>\n","protected":false},"author":3,"featured_media":134,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-71","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HTWP \u2013 Bosch - LowEx-Bestand<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lowex-bestand.de\/index.php\/bestand-htwp-bosch\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HTWP \u2013 Bosch - LowEx-Bestand\" \/>\n<meta property=\"og:description\" content=\"[:de] Entwicklung von W\u00e4rmepumpenl\u00f6sungen f\u00fcr Mehrfamilienh\u00e4user F\u00f6rderkennzeichen: 03ET1377 A\/B\/C Laufzeit: 01.01.2016 bis 31.12.2021 Projektpartner: Fraunhofer ISE, Bosch Thermotechnik, Robert Bosch GmbH &nbsp; 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