Conception et Etude expErimentale d'un gEnErateur A film tombant de type plaque pour une pompe A chaleur A absorption au LiBR/H2O
Design and experimental study of a plate-type falling-film generator for a LiBr/H2O absorption heat pump
Abstract A novel plate-type falling-film generator for a LiBr/H 2 O absorption heat pump and the resulting generator/condenser unit prototype are presented in this paper. The generator consists of a directly-connected overflow solution distributor. This novel structure can ensure uniform solution distribution and stable falling-film flow; it is also more compact and provides greater feasibility to regulate capacity by plate assembly compared to conventional distributors for falling film. Visual flow pattern experiments were conducted in a vacuum atmosphere. Split flows and obvious parabolic dry areas were shown to exist. The method to improve the wetting rate was also investigated. Thermal performance tests show that the heat transfer coefficient of the generator ranged from 0.735 kW⋅m −2 ⋅K −1 to 0.856 kW⋅m −2 ⋅K −1 . The flow and thermal experiment results demonstrate the feasibility of the plate-type falling-film generator for a LiBr/H 2 O absorption heat pump. The concept of the novel generator can be used for all absorption heat pump components and thus greatly increase the generalizability of the absorption technology. Highlights Pate-type falling-film generator for LiBr/H 2 O absorption heat pump is presented. A directly-connected overflow solution distributor for falling-film is proposed. Visual vacuum solution falling-film flow pattern experiments were conducted. The wetting rate increased when the plates were heated or wetted in advance. Tested heat transfer coefficient range of the generator is 0.735~0.856 kW⋅m −2 ⋅K −1 .
- 원문이 없습니다.
유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.
NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.
- 이 논문과 함께 출판된 논문 + 더보기