![]() But for now, the developer’s goal seems to be making the game as stable as possible for its large - and still growing - community. ![]() Of course, as with any complicated problem, Blizzard’s solutions are likely to take time too. Blizzard has offered players an explanation and action plan as to why many players have been fighting with server outages in the recent release of Diablo II: Resurrected. After a few weeks, players still cannot play the game consistently as it suffers from frequent crashing to this day. Instead, Blizzard’s more permanent solutions include breaking certain services out into their own separate system to help reduce the server load they create. When Diablo II: Resurrected launched in late September, it was plagued by several issues, including the inability to log into the game and random crashes. Blizzard is calling this “rate limiting” and it will be communicated with an error message that says “there was an issue communicating with the game servers.” Another solution Blizzard is trying is a more aggressive queuing system that slows player logins to more of a trickle rather than a waterfall that might bring the whole game down.īlizzard says that none of these solutions are necessarily permanent, and instead are mostly focused on preventing the game from crashing completely anytime in the near future. The first solution is to lock players out of creating new games if they create too many in a short period of time. Thankfully, Blizzard has a few plans to mitigate some of these problems. All these new instances clog servers and prevent other services from going through. Practices like creating new game lobbies to farm certain fights weren’t as prominent during the game’s original release, and have put a huge strain on the system. These systems were mostly fine back in the early 2000s, but player behavior is much different now than it was then, Blizzard says. Blizzard has gone back through and updated bits and pieces, to make them more compatible with modern technology, but it’s largely the same as it was back then. This legacy code affects things like game creation and joining, basic functionality, reading character data, updating/reading/filtering game lists, verifying server health, and more. Large portions of the game’s code, at least for certain processes, are essentially the same as they were when the original was released two decades ago. I also saw connections to cloud servers during playing. ![]() This is consistent with previous beta tests that are generally run from their main server farm in LA/Los Vegas. ![]() During game play I was connected to servers in LA/Los Vegas. With more players logging in now than when the game launched, Blizzard’s servers are having a hard time keeping up.īut by far the biggest problem that Blizzard points out has to do with how Diablo 2: Resurrected was made. Ive been monitoring the connections the D2R Multiplayer Beta makes and honestly at the moment its not 100 clear. Diablo 2: Resurrected is still hitting new high watermarks for player-count as recently as last week. One problem that might seem surprising is the sheer number of players that Blizzard is dealing with. The Diablo 2: Resurrected launch has been shaky, with players reporting issues creating lobbies and temporarily having their characters deleted. After more than a week of crashes and outages, Blizzard has released a long and in-depth blog post describing the issues, what’s causing them, and how its team plans on fixing them.Īll of the Diablo 2 remake’s server problems are being caused by a series of smaller issues stacked on top of each other, Blizzard’s post explains, which means there isn’t just one solution to fixing them. Diablo® II: Resurrected is a remastered version of the quintessential action RPG Diablo® II. They suggested at one point on the 10th that, "the login issues have been resolved." Before the end of that same day, the company posted another note about reports of login issues, another note on how they were "working to resolve this ASAP," and a posting at around 3PM on the 10th that the login issues had "been resolved" once again.Diablo 2: Resurrected has had server issues since it launched last month, but recently they’ve gotten even worse. Diablo 2: Resurrected has been having server troubles throughout the weekend, particularly in the European region. That bit of maintenance was initiated due to reports of "login issues."Īgain on October 10th, "login issues" appeared as a reason for investigation by Blizzard's support team. This was an emergency maintenance, during which "the game services will be unavailable". It was October 9 when the otherwise most-recent maintenance was initiated. Right now – as of the posting of this article – there is one instance of World of Warcraft maintenance scheduled for October 13, 2021. That scheduled maintenance was set to take place on October 6, 2021. As of October 5, 2021, Blizzard issued a note about maintenance that suggested they'd be down one single time in the near future.
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![]() It is obvious, and it will be very useful in the analysis of both thermodynamic cycles used in power engineering, i.e., in the Brayton and Rankine cycles. At constant pressure, the enthalpy change equals the energy transferred from the environment through heating:Īt constant entropy, i.e., in isentropic process, the enthalpy change equals the flow process work done on or by the system: As can be seen, this form of the law simplifies the description of energy transfer. There are no changes in the control volume. ![]() This work, Vdp, is used for open flow systems like a turbine or a pump in which there is a “dp”, i.e., change in pressure. In this equation, the term Vdp is a flow process work. Since H = U + pV, therefore dH = dU + pdV + Vdp and we substitute dU = dH – pdV – Vdp into the classical form of the law: A negative value indicates that work is done on the system by its surroundings. A positive value for work indicates that work is done by the system in its surroundings. In this case, the final state is the same as the initial state, but the total work done by the system is not zero. Moreover, we can take the system through a series of states forming a closed loop, such i ⇒ f ⇒ i. The second process shows that work is greater, and that depends on the path of the process. Work W is positive because the system’s volume increases. The blue area represents the pΔV Work done by a system from an initial state i to a final state f. As can be seen from the picture (p-V diagram), work is a path-dependent variable. Q and W are path-dependent, whereas ΔE int is path-independent. One of the most important conclusions is that: When they are all equilibrium states, the path can be plotted on a pV-diagram. There are always infinitely many different possibilities for these intermediate states. When a thermodynamic system changes from an initial state to a final state, it passes through a series of intermediate states. The work done by the system depends not only on the initial and final states but also on the intermediate states-that is, on the path. The first law of thermodynamics and the work can then be expressed as: To calculate such processes, we would need to know how pressure varies with volume for the actual process by which the system changes from state i to state f. ![]() The p∆V part of enthalpy, i.e., the work done is:ĭuring the volume change, the pressure and temperature may also change. Therefore the resulting volume is 2 m 3 x 1.67 = 3.34 m 3 and ∆V = 3.34 m 3 – 2 m 3 = 1.34 m 3. Since at this enthalpy, the steam has a density of 1.31 kg/m 3, it is obvious that it has expanded by about 2.2/1.31 = 1.67 (+67%). When we use simply Q = H 2 − H 1, then the resulting enthalpy of steam will be:įrom steam tables, such superheated steam (15812/4.4 = 3593 kJ/kg) will have a temperature of 828 K (555☌). Since the steam has a density of 2.2 kg/m 3, we know about 4.4 kg of steam in the piston at an enthalpy of 2912 kJ/kg x 4.4 kg = 12812 kJ. Using steam tables we know, that the specific enthalpy of such steam (500 kPa 500 K) is about 2912 kJ/kg. This happens when steam or gas contained in a piston-cylinder device expands against the piston and forces the piston to move.Ĭonsider a frictionless piston that is used to provide a constant pressure of 500 kPa in a cylinder containing steam ( superheated steam) of a volume of 2 m 3 at 500 K.Ĭalculate the final temperature if 3000 kJ of heat is added. It is used for calculating piston displacement work in a closed system. Boundary work (or pΔV Work) occurs when the volume V of a system changes. Boundary work occurs because the mass of the substance within the system boundary causes a force, the pressure times the surface area, to act on the boundary surface and move it. The pΔV Work is equal to the area under the process curve plotted on the pressure-volume diagram. Pressure-volume work (or pΔV Work) occurs when the volume V of a system changes. PΔV Work pΔV Work is equal to the area under the process curve plotted on the pressure-volume diagram. |
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