Peltier technology opens new opportunities for specialapplications. In the current project, this technology was appliedto design and fabricate a portable thermoelectric beveragecooler and thermoelectric cup. The simulation and results of theexperiment showed that the common beverage cooler is not asuitable design for ignoring the effect of natural convection in<br ...

Crowdfunding platforms have become important sites where people can create projects to seek funds toward turning their ideas into products, and back someone else’s projects. As news media have reported successfully funded projects (e.g., Pebble Time, Coolest Cooler), more people have joined crowdfunding platforms and launched projects. But in spite of rapid growth of the number of users and pro...

The use of LED technology is commonly assumed to result in significantly cooler leaf 1 temperatures than high pressure sodium technology. To evaluate the magnitude of this 2 effect, we measured radiation incident to and absorbed by a leaf under four radiation 3 sources: clear sky sunlight in the field, sunlight in a glass greenhouse, and indoor plants 4 under either high pressure sodium or ligh...

In the spring of 2015, investigators in Switzerland reported a cluster of six patients with invasive infection with Mycobacterium chimaera, a species of nontuberculous mycobacterium ubiquitous in soil and water. The infected patients had undergone open-heart surgery that used contaminated heater-cooler devices during extracorporeal circulation (1). In July 2015, a Pennsylvania hospital also ide...

A simulation model for the CO2 heat pump water heater was developed and validated in this study. Component models of the gas cooler, evaporator, compressor, and expansion valve were constructed with careful consideration for the heat transfer performances. To validate the simulation model, experiments were carried out using an actual CO2 heat pump water heater (water heating capacity: 22.3 kW; ...

The use of LED technology is commonly assumed to result in significantly cooler leaf temperatures than high pressure sodium technology. To evaluate the magnitude of this effect, we measured radiation incident to and absorbed by a leaf under four radiation sources: clear sky sunlight in the field, sunlight in a glass greenhouse, and indoor plants under either high pressure sodium or light emitti...

[1] We present new isotopic and micropaleontological data from a depth transect on Shatsky Rise that record the response of the tropical Pacific to global biotic and oceanographic shifts during the mid-Maastrichtian. Results reveal a coupling between the upper ocean, characterized by a weak thermocline and low to intermediate productivity, and intermediate waters. During the earliest Maastricht...

Refrigeration is a process of maintaining the temperature lower than surroundings. It can be achieved with help components refrigerator and refrigerant. Refrigerant substance atmosphere. VCR widely applied in daily as well large scale industry to produce refrigeration effect. The diffuser passage that will increase pressure energy by changing kinetic at inlets. main objective this project work ...

As one of the earliest natural refrigerants, CO2 has a lot of unique advantages, such as zero ODP, negligible GWP, excellent heat transfer coefficient, high volumetric capacity, non-toxicity, non-flammability, and cost effectiveness. Since it was proposed to applying in the mobile air-conditioning, the transcritical CO2 cycle has been attracting great attentions to replace CFC and HCFC refriger...