摘要:
Provided is a double-pipe heat exchanger (30) that includes an inner pipe (31) including a plurality of plate fins (31a) and a refrigerant pipe (31b) which allows a condensed refrigerant to flow therethrough, an outer pipe (32) which allows an evaporated refrigerant to flow therethrough, and a plurality of partition plates (33) which are arranged in contact with an inner circumferential surface (32e) of the outer pipe (32) and which partition an inner space (S) of the outer pipe (32) into a plurality of divided spaces (S1, S2, S3, S4, S5), wherein the inner pipe (31) is arranged inside the outer pipe (32), the partition plates (33) each have formed therein an opening portion (33a) via which a pair of adjacent divided spaces are connected to each other, a partition plate (33) having the opening portion (33a) formed in an area excluding a vertically lower end of the inner space (S), has formed therein a cutout portion (33c) via which a pair of adjacent divided spaces that are connected, at the lower end, to each other, and the cutout portion (33c) has an opening area smaller than that of the opening portion (33a).
摘要:
A method of conveying heat energy comprises flowing exhaust fumes from an exhaust hood through a heat exchanger, and using a liquid conveyed through the heat exchanger as a heat source for a heat pump to generate heat at a higher temperature than the liquid.
摘要:
In a heater for a liquefied stream, a first heat transfer zone has a box stretching longitudinally along an axis. A first heat transfer surface is arranged inside the box, across which a first indirect heat exchanging contact is established between a liquefied stream that is to be heated and a heat transfer fluid. A second heat transfer zone is located gravitationally lower and includes a second heat transfer surface across which the heat transfer fluid is brought in a second indirect heat exchanging contact with the ambient. A downcomer fluidly connects the first heat transfer zone with the second heat transfer zone and has a first transverse portion and a first downward portion that are fluidly connected to each other via a connecting elbow portion. The connecting elbow portion, when viewed in a vertical projection on a horizontal plane, is located external to the box compared to the axis.
摘要:
The present disclosure relates to a turbocharger system (10) for a light or heavy duty vehicle, a maritime vehicle or a construction vehicle. The turbocharger system (10) comprises a turbocharger device (20), an exhaust manifold conduit (40, 40a), a valve (70), a receptacle (30) for compressed gas and a gas compressor (80) for compressing gas. By opening the valve (70) during a predetermined pulse duration time period compressed gas may be provided from the receptacle (30) to the exhaust manifold conduit (40, 40a) for initial compressor spin-up of the turbocharger compressor (21). The present disclosure is further characterized in that the turbocharger system (10) comprises a cooling means (90), configured to decrease the temperature of the compressed gas provided by the gas compressor (80), and a heating means (100, 100a), configured to increase the temperature of the gas pulse generated by opening of the valve (70). By decreasing the temperature of the compressed gas in the receptacle (30) upstream of the valve (70) generating the gas pulse and subsequently heat up the generated air pulse before being provided to the exhaust manifold conduit (40, 40a), the response time of the turbocharger device (20) can be improved.
摘要:
A gas cooling assembly (10) comprises a plurality of tubular ducts (20), which convey a cooling liquid within them, and a pack of mutually parallel metal sheets (30). Each sheet (30) provides, for each tubular duct (20), a through hole (31) surrounded by a collar (33), which engages a length of the duct. Each tubular duct (20) is composed of a series of modular annular elements (21) of plastic material. The annular elements (21) lock the collars (33) and are reciprocally connected by means of tubular projections (24).