Open heat exchanger for improved energy efficiency in the heating of hot spas /
- 出版日期：2008.
- 出版者：United Nations University, Geothermal Training Programme,
- 页数：viii, 56 p. :
- 出版地：Reykjavik, Iceland :
- 第一责任说明：by Saeid Jalili Nasrabadi.
- 尺寸：25 cm.
- 分类号：a485.2 ; a485.8395
- ISBN：978-9979-68-250-9(pbk.) :
MARC全文
02h0014887 20090930101132.0 090706s2008 ic a frb |000|||eng | 978-9979-68-250-9(pbk.) : CNY60.00 NGL e-ic--- a485.2 ; a485.8395 Nasrabadi, Saeid Jalili. Open heat exchanger for improved energy efficiency in the heating of hot spas / by Saeid Jalili Nasrabadi. Reykjavik, Iceland : United Nations University, Geothermal Training Programme, 2008. viii, 56 p. : ill. ; 25 cm. Reports, 1670-7427 ; 2008 no.4 Originally presented as thesis (MSc) - University of Iceland, 2008. Includes bibliographical references. " Hot spas and jacuzzis are popular in Iceland due to the abundance of reasonably prized [i.e. priced] geothermal heat available. However, the water from the district heating system is too warm to be admitted directly into the spa. For safety reasons the water is mixed with cold water, from 75 down to 50°C, which leads to wasting a large quantity of heat. Therefore a design was suggested that enables the feeding of geothermal water directly into the pot, omitting the step of mixing it with cold water. The idea is to employ an open heat exchanger that transfers much heat from the geothermal water to the bulk water in the spa, before letting it mix with the spa water" -- Abstract. Hot tubs ; Heat exchangers. Iceland Water-supply. Reports / UNU Geothermal Training Programme ; 2008, no.4. aCN bNGL NGL P 485.066 R29 v2008/4 ; h1 ; rCNY60.00 gljx0905