AIR CONDITIONING OF A LARGE GREENHOUSE UTILISING URBAN WASTE HEAT.
Author(s) : MIYAMOTO S.
Type of article: Article
Summary
DIFFERENT TEMPERATURES WITHIN A GROUP OF BOTANICAL SPECIMEN GREENHOUSES REQUIRE WARM AND CHILLED WATER. BOTH THESE ARE OBTAINED FROM A BATTERY OF HEAT PUMPS, USING SEWAGE WATER AS A SOURCE/SINK TO MAKE UP ANY DEFICIT OF HEAT IN WINTER AND REJECT THE SURPLUS IN SUMMER. SYSTEM STABILITY RESULTS FROM THE STEADY TEMPERATURE OF THE SEWAGE, WHICH VARIES FROM 288.2 K (15.2 DEG C) IN WINTER TO 301.2K (28.2 DEG C) IN SUMMER. IN COLDEST WEATHER A SECOND STAGE HEAT PUMP OPERATES TO PRODUCE WATER AT 353 K (80 DEG C). PLATE HEAT EXCHANGERS SEPARATE SEWAGE FROM PRIMARY CIRCUIT, AND ARE DOSED WITH OZONE AS A CLEANSER. COPS UP TO 4.08. A.R. T.
Details
- Original title: AIR CONDITIONING OF A LARGE GREENHOUSE UTILISING URBAN WASTE HEAT.
- Record ID : 1992-1405
- Languages: English
- Source: IEA HPC Newsl. - vol. 9 - n. 3
- Publication date: 1991/09
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: Residential heat-pumps
- Keywords: Heat recovery; Greenhouse; Heat pump; COP; Air conditioning; Waste water
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Urban waste heat provides air conditioning for ...
- Author(s) : MIYAMOTO S.
- Date : 1991/10
- Languages : Dutch
- Source: Koude Mag. - vol. 3 - n. 10
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Sludge drying in a greenhouse assisted by a hea...
- Author(s) : SLIM R., ZOUGHAIB A., CLODIC D.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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High efficiency heat pump for domestic hot wate...
- Author(s) : NEHME G., PALANDRE L., CLODIC D.
- Date : 2008/10/09
- Languages : English
- Source: Scientific symposium: industrial cooling and thermodynamic systems. The Pôle Cristal meetings. [CD-ROM + 4 DVDs]. / Colloque scientifique : froid industriel et systèmes thermodynamiques. Les rendez-vous du Pôle Cristal. [CD-ROM + 4 DVD].
- Formats : PDF
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COMPRESSOR HEAT PUMP FOR GREENHOUSE HEATING.
- Author(s) : DALHUIJSEN A. J., PAASSEN A. H. C. van, MIJNARENDS H.
- Date : 1989/02
- Languages : Dutch
- Source: Koude Klim. - vol. 82 - n. 2
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Performance of a gas engine-driven heat pump sy...
- Author(s) : HU Y., FENG Z., TIAN J., HUANG C., SONG W.
- Date : 2023/01
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
- Formats : PDF
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