This project speaks about the design and study of a refrigeration system that operates as a water cooler in the summer and as water heater in the winter by reversing the cycle. A full design and selection of the system's equipment is made for this cycle that operate on an average evaporator pressure of 200kPa, -10ÌŠ C, and an average condenser pressure of 1MPa, 45ÌŠ C. The mass flow rate of the compressor was found to be 0.00163kg/s, COP = 4.5 and COPh = 5.5. It was concluded that the use of ...
The idea of designing a hybrid sounding rocket to carry a small component of payload into microgravity is indeed a luminous resolution. The design would inherently show the concept of real world situation thus representing the requirements. Here, in this project, we design a hybrid sounding rocket that will dependably meet the requirements to perform its mission. This involves traditional aerospace engineering field such as structures, propulsion, flight mechanics, orbital mechanics, avionics...
Nowadays, the proportion of renewable energy is progressively becoming substantial in many sectors such as power generation, heating and cooling, transport fuels, and off-grid energy services. Indeed, reductions of the greenhouse gas emissions and dependency to the fossil-fuels constitute a priority for many countries. In order to reduce its emissions and secure its energy supply, the European Commission set ambitious objectives to promote the exploitation of renewable energy resources. The E...
Preventive maintenance is a schedule of planned maintenance actions aimed at the prevention of breakdowns and failures. The primary goal of preventive maintenance is to prevent the failure of equipment before it actually occurs. It is designed to preserve and enhance equipment reliability by replacing worn components before they actually fail. Preventive maintenance activities include equipment checks, partial or complete overhauls at specified periods, oil changes, lubrication and so on. In ...
Introduction Background Recently, the trends of manufacturing industry are to seek new and innovative methods to accelerate new product development and to manufacture the product rapidly. These issues have developed into global competition among manufacturing companies to improve their business process. To help do this, rapid manufacturing has appeared as an option. Rapid manufacturing has been developed as an advanced manufacturing technology to shorten time to market. The technologies are b...
Social Acceptability of Proposed Nuclear Power in the UK Nuclear power, being a sustainable and reliable energy source in a global context of ever increasing social concerns about global warming, climate change and trustworthy energy supply, has always been a main talking point when coming to look at the social acceptability of power generation. In recent years, there have been many issues brought up by 'green groups' and local residents which reside close to a power plant who have tried to p...
Air conditioned safety helmet also characterized as Peltier Helmet is a helmet that utilizes peltier plate(also known as TEC-thermoelectric cooler in the helmet. It's a project were peltier plates are to be integrated in a motorcycle riding helmet to prove a more comfortable and pleasant wear. The Idea comes from motorcycle riders in countries having hot climate and making the experience of wearing a helmet horrible. A peltier is a thermoelectric cooler working on the principle of "Peltier ef...
CHAPTER #2 OVERVIEW: A position control system converts a position input command to a position output response. Position control system finds widespread applications in antennas, robot arms, and computer disk drives. The radio telescope antenna is also an example of a system that uses position control systems. Positioning of an antenna has also a great importance in satellite communication, where it is very important that an antenna should continuously and automatically track position an ante...
Natural views of outer space and Earth along with natural sunlight will be provided by the glass supported by a triangular shaped titanium support system that makes up the distance of 226.7m in residential torus and 200.6m in agriculture torus from their respective down surfaces towards their ceilings. 2.1.3 Design features * One Docking cylinder with three ports and four additional ports enable simultaneous docking & loading/unloading of cargo & passenger ships. Two frustum shaped mirrors ar...
When you ask people what the main function is of a landing gear they mostly say it is meant to land the aircraft, yet thats exactly what the words stands for. This is slightly correct, one of the three main functions is energy absorption (at landing). (1.1.1a). But when the aircraft has touched the ground it has to stop, so here is an other main function of the landing gear; braking (1.1.1b). The last step and also the last main function is for taxi control, in other words: to manoeuvre the a...
