Parabolic Trough Solar Collector (PSTC) Technology Essay

The solar industry is divided in three main markets: the European solar thermal market, the Chinese market and the market in other world regions. The industry is segmented in two main types of solar thermal collectors, which are evacuated tube collectors (80 per cent on average of the worldwide newly installed capacity in 2010) and flat plate collectors (20 per cent on average). This industry is characteristic of technology intensive industries with their central innovation: solar thermal water heating which radically reduces costs. They can also count on experimented installers. Each customer adopt and have

Solar distillation system proves to be a good and cost effective method for water purification. The function of solar still is to produce fresh water based on evaporation process, utilizing the solar radiation as the source of energy. Solar still is a device which uses process of solar distillation. A 3 dimensional solar still is modelled at 3 different glass cover inclinations and is brought into Ansys cfd where temperature distribution in the solar still over a period of time due to direct solar irradiation over a particular location is calculated.

The objectives of this experiment are to apply the concept of thermal resistance between a heated surface and its surrounding, and to study the effects of attaching fins to the surface. Analysis was conducted on 3 different surfaces, a flat plate, a flat plate with 1 fin, and a flat plate with 2 fins. The experiment setup is displayed in Figure 1 below. It consists of placing the blower next to the black cardboard with air flow direction parallel to the cardboard, and using the blower to force convection on the electronically heated plate, with 0, 1, or 2 fins. Each plate and fin(s) are thermocouple embedded. Temperature data was taken using the LABVIEW program in the lab and photos are taken by using IR Cameras. Some assumptions for this

CSP, or concentrating solar power, plants are a modern method of generating energy through utilization of sunlight and thermal energy. With the assistance from internal mirrors, solar energy is concentrated onto a small area allowing electricity to be created from the drive of steam turbines. There are three main systems in which CSP plants occur: trough systems, power tower systems, and dish/engine systems. In the trough system, mirrors are used to reflect sunlight onto oil-filled pipes in order to heat the pipes, and eventually, boil surrounding water to create steam to power the turbine. The mirrors in power tower

Solar energy is now a great source of renewable energy. Due to the limited stock of fossil fuel, solar panel systems become more popular day by day. Now Industries, houses and defensive forces are using solar panel systems to generate power. The solar panels generate power from sun radiation. Solar cells are also known as Photovoltaic (PV) cells. When sunlight with a specific frequency hits metal, loosely bound electrons emit from the metal as shown in Figure 1. A potential difference is created in between the cathode and the anode. When the anode and the cathode connect, current flows. Solar panel systems use this mechanism to generate power. Then, generated power is carried out to the battery to store and distribute to the load. The main obstacle for solar panel systems is night and cloudy weather, due to low solar radiation.

Heat transfer processes are prominent in engineering due to several applications in industry and environment. Heat transfer is central to the performance of propulsion systems, design of conventional space and water heating systems, cooling of electronic equipment, and many manufacturing processes (Campos 3).

The purpose of this experiment is to study the effects of how fins affect the thermal resistance and properties of an object. The experiment conducted analysis on three cases for three different plates which were subjected to convection from a blower. The first plate had two fins, the second had one fin and the third had no fins. Each plate had an electrically generated heater in the base. Each plate also started in the same initial conditions. Each plate was well insulated around the base, was painted black and assumed to be a black body with an emissivity of 1. For each case, the wattage of the heater was recorded initially and finally to determine the average heat generation. A constant air flow was applied to each plate by a blower. The methods for recording data involved using thermocouples to analyze the temperature over time. Once a steady state temperature was observed in LabVIEW, then a thermal camera was used to obtain the infrared profiles for each plate. The methods involved in interpreting the infrared profiles consisted of using software to determine the temperatures at the plate, fin base and fin tip. The experiment was conducted in order to gain insight on how fins affect thermal resistance of an object. General assumptions include steady state, constant thermal properties, constant freestream velocity of air, identical fins, negligible surface area from thermocouples on fins, black body, neglect conduction resistance form black paint and

Driven by a desire to tackle the global warming phenomenon, I decided to carry out my final year project work on a solar power generation device, where I came up with an innovative method and designed a dual axis model which used the solar power to operate and produce renewable energy with improved efficiency.

Different types of renewable energy and solar thermal power plants will be presented in this chapter.

Thermal energy storage (TES) system store excess thermal energy with different applications and materials and release it for later use. [1] For instance, TES systems is an available means to balanced energy demand between day time peak hours and night time lower usage of energy. Specially, with the applications such like solar collectors, thermal energy storage system can be used to collect summer heat and storage for winter space heating; and summer space cooling like wise. [2] Similar with other energy storage systems, TES systems provide a possibility to overcome the mismatch between energy generated and usage, which is an important environmental-friendly approach to solve the problems of present energy usage and carbon dioxide emissions. [3] Fig. 1 below shows about areas of research in thermal storage systems.

Many engineering systems during their operation generate heat. If this generated heat is not dissipated rapidly to its surrounding atmosphere, this may cause rise in temperature of the system components. This by-product cause serious overheating problems in electronic system and leads to whole system failure, so the generated heat within the system must be rejected to its surrounding to maintain the system at recommended or limited temperature for its efficient and proper working. The techniques used in the cooling of high power density electronic devices vary widely, depending on the application and the required cooling capacity. The heat generated by the electronic components has to pass through a complex network of thermal resistances to the environment. The enhancement of heat transfer is an important subject of thermal engineering. Extended surfaces that are well known as fins are commonly used to enhance heat transfer in many industries. Pin fin is one of them. Heat transfer rate is increased by using natural, forced or mixed convection. But now a day’s application of natural convection to the cooling of electrical and electronic equipment has received a considerable attention over the past years. It doesn‘t require either a fan or a blower, it is free of maintenance, zero power consumption, is low cost, the noise level is reduced and also the cleanliness of the system is improved. These features of natural convection cooling play an important role in the electrical as

A solar thermal collector collects heat by absorbing heat from sunlight. A collector is a device for capturing solar radiation.

The energy content of solar radiation can be used as light, heat and electricity. This diversity means that solar power is an option different power systems important food worldwide. In fact, interest in solar power systems has been increasing in recent years worldwide. This interest to several factors, such as environmental awareness, effort should be to minimize the dependence on non -renewable fossil fuels countries and international agreements that require the reduction of greenhouse gases in the atmosphere of the earth. Heat storage technologies, systems and applications are studied in the field of solar energy. One way to collect and store solar energy by using solar ponds can be used to provide thermal energy for various applications, such as process and space heating, water desalination, refrigeration, drying and power generation. Thermal energy storage has always been the most important energy storage option. Solar ponds are a classic application of thermal energy storage and efficiency essentially depends on the storage capacity of the fluid, Thermo physical properties of pond conditions and surroundings. Recently, attention has been paid to friendly sources to the environment, sustainable energy, such as solar energy. In this respect, solar ponds seem to be a potential for the application method. In this respect, solar ponds seem to be a potential for the application method.

Abstract— In earth nowadays, the naturally formed fuels in the world are depleting. Within the limit of fifty years or more, all the fuels found in the earth will be vanished. The main reason for this depletion is due to increase in population and the production of vehicles. We the Engineers can overcome this by developing a new generation vehicle called Solar Hybrid Vehicle. This vehicle can run through solar energy as well as electricity. So only this is called as Solar Hybrid Vehicle. In last years, as a consequence of the diffusion of Hybrid Electric Vehicles and to the growing recourse to renewable sources, increasing attention is being given to the integration of these vehicles with photovoltaic panels. Hybrid Solar Vehicles might represent a valuable solution to face both energy saving and environmental issues, particularly in case of intermittent use in urban conditions, but relatively little research effort has been spent in this direction. Here it is proposed to have a parabolic point focusing type solar collector to receive the energy. This paper mainly aims at the usage of

Heat pipe solar collector : -40 ° C low temperature resistant , applicable to the three northeastern provinces , Inner Mongolia , Xinjiang, Tibet