Project Abstract

Abstract
The refurbishment of temperature control apparatus plays a crucial role in maintaining the efficiency and accuracy of various industrial processes and scientific experiments. This research project focuses on the process of refurbishing temperature control apparatus such as thermostats, temperature sensors, and controllers to ensure their optimal performance. The study involves a comprehensive analysis of the common issues and challenges faced in temperature control apparatus, as well as the best practices for refurbishment techniques. The refurbishment process includes various steps such as inspection, cleaning, repair, calibration, and testing of the temperature control apparatus. Proper inspection is essential to identify any physical damages, corrosion, or malfunctioning components in the apparatus. Cleaning of the apparatus is crucial to remove any debris, dust, or contaminants that may affect its performance. Repairing any damaged parts or components is necessary to restore the functionality of the temperature control apparatus. Calibration is a critical step in the refurbishment process to ensure the accuracy and precision of temperature measurements. It involves adjusting the settings and parameters of the temperature control apparatus to match the desired temperature range. Proper calibration is essential for maintaining the reliability and consistency of temperature control in various applications. Testing of the refurbished temperature control apparatus is essential to verify its performance and functionality. Various tests such as temperature stability, response time, and accuracy are conducted to ensure that the refurbished apparatus meets the required specifications. The data collected from these tests are analyzed to identify any deviations or inconsistencies in the performance of the temperature control apparatus. Overall, the refurbishment of temperature control apparatus is essential for maintaining the efficiency and reliability of industrial processes and scientific experiments. By following the proper refurbishment techniques and best practices, organizations can ensure that their temperature control apparatus operates at its optimal performance level. This research project provides valuable insights into the refurbishment process and highlights the importance of proper maintenance and calibration of temperature control apparatus for various applications.

Project Overview

 BACKGROUND OF THE STUDY

Armfield temperature control appara [tus is a pilot plant scale apparatus for the study of heat transfer, process control fluid mechanism and thermodynamics by chemical Engineering students in various institutions of higher learning.

The apparatus consists of two heaters, with voltage between 220-240 and 6kw of power. The heaters has thermostatic range from 380C-82C0, heat transfer area (A) of the heat exchanger is 0.64m2 (0.059fts2) ALFA-LAVAL. Four thermo walls, each fitted at the inlet and outlet points on the heat exchanger for insertion of thermometers for temperature measurement. It has a sump tank of capacity of 70 litres, three flow meters (Rotameters), two of variable area type, a pump of power 0.23kw and capacity of 55litres/min at 1.5m and 9 litres/min at 6m. a control valve (air regulator) of ½ inch, PID (Honey well) controller, two pen chart recorder, temperature sensor, electronic controller etc. as the name applies it is used to control or measure temperature.

In industries in order to avoid wastes during production of goods, even in pilot plant where production of good are in small scale, there is need for control system which gives more stable (Uniform) process and higher quality products. Certain variables like temperature applied to fluid or rather dictated from body, fluid flow rate, pressure etc which causes loss of valuable materials during production. Some of the above mentioned variable can be corrected using temperature control apparatus.

Heat exchange is one of the most frequent operations mainly in process industries. A large number of processes proceed at a much faster rate as the temperature is raised and it is economically advantageous to use as high a temperature as possible. Chemical reaction rates are approximately doubled for every 100 rise in temperature.

Chemical reactions are frequently exothermic, however, and it may well be necessary to remove heat through a heat exchanger rather than supply it inorder to avoid a catastrophic temperature rise. Thus, to balance the requirements of maximum efficiency and complete control over the process may require the very close regulation of the temperature.

The pilot plant temperature control apparatus is designed to show the working of a heat exchanger and to permit a series of experiments to be performed with it. Water is both the process fluid and the heating fluid, the rate of flow may be set up to show how flow control may be obtained in various ways.

1.2       AIMS OF THE STUDY

Refurbishment is to keep the apparatus in top operating condition through repairs, maintenance and servicing of parts of the apparatus. Through the refurbishment it increase the workability of the apparatus (equipment) the degree of accuracy and precision as well the sensitivity of the equipment. It improves the performance of the equipment, maximize efficiency and bring error to minimum.

Through the maintenance or refurbishment of the equipment, quantity/quality control, cost effectiveness, strength of material and prolonged apparatus/plant life span can be obtained.

1.3     SCOPE OF THE STUDY

This involves detecting the faulty components of the temperature control apparatus and the repairing which includes general servicing, flushing of the sump tank. To reduce fouling, scraping off the corroded parts, filling of the leaking parts with filler and painting of the sump tank. Ensuring that there would be no leakage either by values or pipes when running the apparatus and the efficiency of the circulating pump.

At the end, it is expected that he pilot plant temperature control apparatus will be in top operating conditio