Heat Transfer Lab Report

If the two solutions are not at the same temperature a correction must be made to find the correct change in temperature. This is done by using an equation where the initial volume and temperature of NaClO is multiplied together and the initial volume and temperature of Solution “A” is multiplied together, and the two answers are added and then divided by 50

13. The temperature of the water was measured prior to the tube being placed in it and the temperature of the Hydrochloric Acid was measured after it 's temperature had adjusted.

13. Calculate the change in temperature for the water caused by the addition of the aluminum by subtracting the initial temperature of the water from the

The control experiment for this investigation will be the experimental setup of 5 trials using 5oC as the temperature. All the steps in the method will be followed.

2. Conduction heat loss by direct molecule to molecule transfer from one surface to another. (skin loses heat through direct contact with cooler air, water, or other surfaces)

13. Calculate the change in temperature for the water caused by the addition of the aluminum by subtracting the initial temperature of the water from the

The jar was held in place so that it did not obstruct airflow in straw when it was placed over the candle. The process of trial 1 was repeated three times with the additional straw.

4. Remelt the contents of the tube and add the counterpart component based on the given schedule. Ask the demonstrator to adjust the cooling water between mixtures. During the experiment, record and plot the data obtained for all mixtures listed. The experiments are stopped as follows:

When pipes are not lagged they give off a very high amount of heat energy if the pipe contains hot materials. Also workers nearby could burn themselves if they make physical contact with the hot surface. Insulating lagging such as fibre glass, magnesia and slag wool all have low thermal conductivity so most of the heat in the pipe will not be able to escape so the temperature of the liquid travelling through a pipe will lose the smallest amount of heat possible. Reflective lagging can also be used; this reflects radiation such as heat from the sun as the surface is shiny and metallic so the radiation rays cannot be absorbed. The key reason why lagging is used in steam systems is that a lot of energy is put into getting the steam up to the desired temperature so it is a waste to lose this energy when it could be

3. Calculate the total heat released in each reaction, assuming that the specific heat of the solution is the same as for pure water (4.18J/gK). Use q=mcΔT. Show work here and record your answer in Data Table 2.

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

Plate heat exchangers are clearly sorts of warmth exchangers. It capacities by exchanging the warmth starting with one liquid then onto the next through the utilization of metal plates. Contrasting it and traditional warmth exchangers, these ones are supported particularly in light of the fact that the liquids deal with bigger surface zones and are equipped for scattering to the metal plates. Basically, the methodology empowers appropriate assistance of warmth exchange as it velocities up the adjustments in temperature happening amid the procedure.

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

The critical heat flux (CHF) condition is characterized by a sharp reduction of the local heat transfer coefficient that results from the replacement of liquid by vapor adjacent to the heat transfer surface .The occurrence of CHF is accompanied by an inordinate increase in the surface temperature for heat-flux-controlled systems, and an inordinate decrease in the heat transfer rate for temperature-controlled systems. The CHF condition is

Overall, the experiment succeeded that the metals show the theoretical properties. Differences existed in the mathematical calculation of the actual length. These differences, however, it can be accounted for by experimental error; more over there are uncertainty on purity of the